package network::tools; # $Id$ use strict; use common; use run_program; use c; use Socket; sub write_secret_backend { my ($a, $b) = @_; foreach my $i ("$::prefix/etc/ppp/pap-secrets", "$::prefix/etc/ppp/chap-secrets") { substInFile { s/^'$a'.*\n//; $_ .= "\n'$a' * '$b' * \n" if eof } $i; #- restore access right to secrets file, just in case. chmod 0600, $i; } } sub unquotify { my ($word) = @_; $$word =~ s/^(['"]?)(.*)\1$/$2/; } sub read_secret_backend() { my $conf = []; foreach my $i ("pap-secrets", "chap-secrets") { foreach (cat_("$::prefix/etc/ppp/$i")) { my ($login, $server, $passwd) = split(' '); if ($login && $passwd) { unquotify \$passwd; unquotify \$login; unquotify \$server; push @$conf, {login => $login, passwd => $passwd, server => $server }; } } } $conf; } sub passwd_by_login { my ($login) = @_; unquotify \$login; my $secret = read_secret_backend(); foreach (@$secret) { return $_->{passwd} if $_->{login} eq $login; } } sub connect_backend { my ($net) = @_; run_program::raw({ detach => 1, root => $::prefix }, "/sbin/ifup", $net->{net_interface}); } sub disconnect_backend { my ($net) = @_; run_program::raw({ detach => 1, root => $::prefix }, "/sbin/ifdown", $net->{net_interface}); } sub bg_command_as_root { my ($name, @args) = @_; #- FIXME: duplicate code from common::require_root_capability if (check_for_xserver() && fuzzy_pidofs(qr/\bkwin\b/) > 0) { run_program::raw({ detach => 1 }, "kdesu", "--ignorebutton", "-c", "$name @args"); } else { run_program::raw({ detach => 1 }, [ 'consolehelper', $name ], @args); } } sub user_run_interface_command { my ($command, $intf) = @_; if (system("/usr/sbin/usernetctl $intf report") == 0) { run_program::raw({ detach => 1 }, $command, $intf); } else { bg_command_as_root($command, $intf); } } sub start_interface { my ($intf) = @_; user_run_interface_command('/sbin/ifup', $intf); } sub stop_interface { my ($intf) = @_; user_run_interface_command('/sbin/ifdown', $intf); } sub connected() { gethostbyname("mandrakesoft.com") ? 1 : 0 } # request a ref on a bg_connect and a ref on a scalar sub connected_bg__raw { my ($kid_pipe, $status) = @_; local $| = 1; if (ref($kid_pipe) && ref($$kid_pipe)) { my $fd = $$kid_pipe->{fd}; fcntl($fd, c::F_SETFL(), c::O_NONBLOCK()) or die "can not fcntl F_SETFL: $!"; my $a = <$fd>; $$status = $a if defined $a; } else { $$kid_pipe = check_link_beat() } } my $kid_pipe; sub connected_bg { my ($status) = @_; connected_bg__raw(\$kid_pipe, $status); } # test if connected; # cmd = 0 : ask current status # return : 0 : not connected; 1 : connected; -1 : no test ever done; -2 : test in progress # cmd = 1 : start new connection test # return : -2 # cmd = 2 : cancel current test # return : nothing # cmd = 3 : return current status even if a test is in progress my $kid_pipe_connect; my $current_connection_status; sub test_connected { local $| = 1; my ($cmd) = @_; $current_connection_status = -1 if !defined $current_connection_status; if ($cmd == 0) { connected_bg__raw(\$kid_pipe_connect, \$current_connection_status); } elsif ($cmd == 1) { if ($current_connection_status != -2) { $current_connection_status = -2; $kid_pipe_connect = check_link_beat(); } } elsif ($cmd == 2) { if (defined($kid_pipe_connect)) { kill -9, $kid_pipe_connect->{pid}; undef $kid_pipe_connect; } } return $current_connection_status; } sub check_link_beat() { bg_command->new(sub { require Net::Ping; my $p; if ($>) { $p = Net::Ping->new("tcp"); # Try connecting to the www port instead of the echo port $p->{port_num} = getservbyname("http", "tcp"); } else { $p = Net::Ping->new("icmp"); } print $p->ping("www.mandriva.com") ? 1 : 0; }); } sub is_dynamic_ip { my ($net) = @_; any { $_->{BOOTPROTO} !~ /^(none|static|)$/ } values %{$net->{ifcfg}}; } sub is_dynamic_host { my ($net) = @_; any { defined $_->{DHCP_HOSTNAME} } values %{$net->{ifcfg}}; } #- returns interface whose IP address matchs given IP address, according to its network mask sub find_matching_interface { my ($net, $address) = @_; my @ip = split '\.', $address; find { my @intf_ip = split '\.', $net->{ifcfg}{$_}{IPADDR} or return; my @mask = split '\.', $net->{ifcfg}{$_}{NETMASK} or return; every { $_ } mapn { ($_[0] & $_[2]) == ($_[1] & $_[2]) } \@intf_ip, \@ip, \@mask; } sort keys %{$net->{ifcfg}}; } #- returns gateway interface if found sub get_default_gateway_interface { my ($net) = @_; my @intfs = sort keys %{$net->{ifcfg}}; my $routes = get_routes(); (find { $routes->{$_}{gateway} } keys %$routes) || $net->{network}{GATEWAYDEV} || $net->{network}{GATEWAY} && find_matching_interface($net, $net->{network}{GATEWAY}) || (find { get_interface_type($net->{ifcfg}{$_}) eq 'adsl' } @intfs) || (find { get_interface_type($net->{ifcfg}{$_}) eq 'isdn' && text2bool($net->{ifcfg}{$_}{DIAL_ON_IFUP}) } @intfs) || (find { get_interface_type($net->{ifcfg}{$_}) eq 'modem' } @intfs) || (find { get_interface_type($net->{ifcfg}{$_}) eq 'wifi' && $net->{ifcfg}{$_}{BOOTPROTO} eq 'dhcp' } @intfs) || (find { get_interface_type($net->{ifcfg}{$_}) eq 'ethernet' && $net->{ifcfg}{$_}{BOOTPROTO} eq 'dhcp' } @intfs); } sub get_interface_status { my ($intf) = @_; my $routes = get_routes(); return $routes->{$intf}{network}, $routes->{$intf}{gateway}; } #- returns (gateway_interface, interface is up, gateway address, dns server address) sub get_internet_connection { my ($net, $o_gw_intf) = @_; my $gw_intf = $o_gw_intf || get_default_gateway_interface($net) or return; return $gw_intf, get_interface_status($gw_intf), $net->{resolv}{dnsServer}; } sub get_interface_type { my ($interface) = @_; require detect_devices; member($interface->{TYPE}, "xDSL", "ADSL") && "adsl" || $interface->{DEVICE} =~ /^ippp/ && "isdn" || $interface->{DEVICE} =~ /^ppp/ && "modem" || (detect_devices::is_wireless_interface($interface->{DEVICE}) || exists $interface->{WIRELESS_MODE}) && "wifi" || detect_devices::is_lan_interface($interface->{DEVICE}) && "ethernet" || "unknown"; } sub get_default_metric { my ($type) = @_; my @known_types = ("ethernet_gigabit", "ethernet", "adsl", "wifi", "isdn", "modem", "unknown"); my $idx; eval { $idx = find_index { $type eq $_ } @known_types }; $idx = @known_types if $@; $idx * 10; } sub get_interface_ip_address { my ($net, $interface) = @_; `/sbin/ip addr show dev $interface` =~ /^\s*inet\s+([\d.]+)/m && $1 || $net->{ifcfg}{$interface}{IPADDR}; } sub host_hex_to_dotted { my ($address) = @_; inet_ntoa(pack('N', unpack('L', pack('H8', $address)))); } sub get_routes { my %routes; foreach (cat_("/proc/net/route")) { if (/^(\w+)\s+([0-9A-F]+)\s+([0-9A-F]+)\s+(?:[0-9A-F]+)\s+\d+\s+\d+\s+(\d+)\s+([0-9A-F]+)/) { hex($2) and $routes{$1}{network} = host_hex_to_dotted($2); hex($3) and $routes{$1}{gateway} = host_hex_to_dotted($3); $4 and $routes{$1}{metric} = $4; } } #- TODO: handle IPv6 with /proc/net/ipv6_route \%routes; } 1;